class Test {
  void test() {
    int i = <error descr="Switch expression does not have any result expressions">switch</error>(0) {
      default -> throw new NullPointerException();
    };
  }
  
  void test2() {
    int i = <error descr="Switch expression does not have any result expressions">switch</error>(0) {
      case 0 -> {while(true);}
      case 1 -> {
        throw new RuntimeException();
      }
      default -> throw new NullPointerException();
    };
    
  }
  
  void positive() {
    int i = switch(0) {
      case 4 -> 2;
      default -> throw new NullPointerException();
    };
  }
}